.327 Federal Magnum
The .327 Federal Magnum is a cartridge introduced by Federal Premium Ammunition and also sold by Sturm, Ruger & Co. It is intended to provide the power of a .357 Magnum in six-shot, compact revolvers, whose cylinders would otherwise only hold five rounds. The .327 has also been used in full-sized revolvers with a capacity of seven rounds or more. The .327 Federal Mag is an example of a "super magnum", because it is a magnum of a magnum, the .32 H&R Magnum.
| .327 Federal Magnum | ||||||||||||||||||||
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.327 Federal Magnum (left) with a .357 Magnum (right) | ||||||||||||||||||||
| Type | Revolver | |||||||||||||||||||
| Place of origin | United States | |||||||||||||||||||
| Production history | ||||||||||||||||||||
| Designer | Federal Premium Ammunition and Sturm, Ruger & Co. | |||||||||||||||||||
| Designed | 2007 | |||||||||||||||||||
| Produced | 2008–present | |||||||||||||||||||
| Specifications | ||||||||||||||||||||
| Parent case | .32 H&R Magnum | |||||||||||||||||||
| Case type | Rimmed, straight | |||||||||||||||||||
| Bullet diameter | .312 in (7.9 mm) | |||||||||||||||||||
| Neck diameter | .337 in (8.6 mm) | |||||||||||||||||||
| Base diameter | .337 in (8.6 mm) | |||||||||||||||||||
| Rim diameter | .375 in (9.5 mm) | |||||||||||||||||||
| Rim thickness | .055 in (1.4 mm) | |||||||||||||||||||
| Case length | 1.20 in (30 mm) | |||||||||||||||||||
| Overall length | 1.47 in (37 mm) | |||||||||||||||||||
| Primer type | Small pistol magnum | |||||||||||||||||||
| Maximum pressure | 45,000 psi (310 MPa) | |||||||||||||||||||
| Ballistic performance | ||||||||||||||||||||
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| Test barrel length: 3 1/16 in, * 51⁄2" Blackhawk Revolver Source(s): Outdoor Writers * Ballistics by the inch | ||||||||||||||||||||
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